import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import time

from matplotlib.pyplot import MultipleLocator
df_news = pd.read_table('speed.txt',header = None)

t = df_news[0]
x = df_news[1]
y = df_news[2]

print(len(t))
print(t[0])
#a = 0

#def f():
#	if not hasattr(f, 'x'):
#		f.x = 0
#	f.x+=1
#	return f.x

#if __name__ == '__main__':
#	while True:
#		print(a)
#		time.sleep(1)
#		a = f()
